Structure to prevent soil loss in slope of river and coast and installation method thereof

ABSTRACT

This application relates to a structure for preventing soil loss in slopes of a river and a coast. In one aspect, the structure includes a body part made of concrete, a plurality of first leg parts connected to a first end of the body part and arranged on a first plane by extending therefrom in longitudinal directions of the first leg parts, and a plurality of second leg parts connected to a second end of the body part and arranged on a second plane perpendicular to the first plane by extending therefrom in longitudinal directions of the second leg parts. The structure may further include a first reinforcement part provided by protruding outward from the body part, a second reinforcement part provided on a portion of each of the first leg parts by protruding outward therefrom, and a flowing water induction part provided as a shape of a channel.

CROSS REFERENCE TO RELATED APPLICATION

The present application claims priority to Korean Patent Applications Nos. 10-2021-0029582 and 10-2021-0029583, both filed Mar. 5, 2021, the entire contents of each of which are incorporated herein for all purposes by this reference.

BACKGROUND Technical Field

The present disclosure relates generally to a structure which is installed in a place which receives a large amount of external water or a large wave to prevent soil loss in the slopes of a river and a coast. More particularly, the present disclosure relates to a structure to prevent soil loss in the slopes of a river and a coast and an installation method thereof in which structural fragility is solved to improve structural interlocking such that workability and stability can be secured.

Description of Related Technology

Generally, a slope is installed on each of the opposite sides of a river, and the slope prevents flooding of the river to ensure the safety of residents adjacent to the river, and a waterfront formed to be connected to the slope helps residents to lead comfortable lives.

On the river's slope, a retaining wall is installed at a side in contact with the river by using concrete, and a sidewalk is installed on the waterfront that is in contact with the slope.

SUMMARY

Accordingly, the present disclosure has been made keeping in mind the above problems occurring in the related art, and the present disclosure is intended to propose a structure to prevent soil loss in the slopes of a river and a coast and an installation method thereof, whereby when the structure is installed on a river embankment, the structure having a protruding shape which can prevent the soil loss of the embankment in case of a great flood has a large interlocking force and has a function to improve the mounting of a rope to a leg part such that the strength of the structure is increased and the structure is stably manufactured and constructed.

Furthermore, the present disclosure is intended to propose a structure to prevent soil loss in the slopes of a river and a coast and an installation method thereof in which reinforcement parts having predetermined width and height for relieving tensile stress concentration are installed on a body part and a portion at which each curved surface and line of two leg parts coupled to each of the opposite ends of the body part are adjacent to each other such that interlocking of the structure and a structure strength thereof are improved.

However, the technical objectives to be achieved in the structure of the present disclosure are not limited to the technical objectives mentioned above, and other technical objectives not mentioned will be able to be clearly understood by those skilled in the art to which the present disclosure belongs from the following description.

In order to achieve the above objectives, according to one aspect of the present disclosure, there is provided a structure to prevent soil loss in slopes of a river and a coast, the structure including a body part made of concrete, a plurality of first leg parts connected to a first end of the body part and arranged on a first plane by extending therefrom in longitudinal directions of the first leg parts, and a plurality of second leg parts connected to a second end of the body part and arranged on a second plane perpendicular to the first plane by extending therefrom in longitudinal directions of the second leg parts, the structure including: a first reinforcement part provided by protruding outward from the body part such that the first reinforcement part surrounds the body part to which each of the first leg parts and each of the second leg parts are connected, a second reinforcement part provided on a portion of each of the first leg parts by protruding outward therefrom, and a flowing water induction part provided as a shape of a channel defined by the second reinforcement part and configured to induce a flow of flowing water.

In addition, each of the plurality of first and second leg parts may extend to have an angle preset in the longitudinal direction thereof.

Furthermore, the flowing water induction part may be configured as a cross-shaped channel by the second reinforcement part relative to an inflection point of a front center of each of the first leg parts and may induce a flow of flowing water.

Furthermore, the first reinforcement part may be configured as a closed or semi-closed type.

Furthermore, the structure may further include pulling protrusion parts having shapes tapered inward to have shapes of convex wedges formed respectively on a lower end of the body part, an extension line of an axis of the body part, and the first and second leg parts.

Furthermore, the pulling protrusion parts may be configured as wedge-shaped blocks and upper and lower parts thereof may be connected to each other to strengthen interlocking therebetween.

An installation method of the structure to prevent soil loss in slopes of a river and a coast described above may include: forming at least one pulling protrusion part on a preset position of the structure which is composed of the body part made of concrete, the first and second leg parts, the reinforcement parts, and the flowing water induction part and is configured to prevent soil loss, moving a position of the structure to a preset position by hanging a rope on the pulling protrusion parts and pulling the structure after the forming of the pulling protrusion parts, arranging the structure such that the flowing water induction part of the structure which is being moved through the moving of the position of the structure faces a front of a river or a coast, and piling a plurality of structures on each other to be installed by repeating the moving of the structure position and the arranging of the structure.

According to an embodiment of the present disclosure, when structures are installed on a coast, the structures have sufficient stability against wave forces and maintain structural strength thereof against external forces or a weight thereof, and are effective in curing and construction. Furthermore, when the structures are piled on each other to attenuate wave energy, the structures can have suitable porosity, thereby securing workability and stability during the installation of the structures.

Furthermore, according to the present disclosure, the pulling protrusion part having the shape of a convex wedge is installed on each of the lower end of the body part, the extension line of the axis of the body part, and the leg parts, thereby causing no damage to structural strength and securing safety during construction and an excellent bonding property and in the case of a structure having a large weight, preventing accidents during installation and reducing manufacturing costs by shortening a construction period.

Furthermore, according to the present disclosure, strength of the structure can be increased by 1.7 to 2.3 times or more than the strength of an existing structure, and the interlocking function of the structure of the present disclosure can be improved.

Effects obtained from the structure of the present disclosure are not limited to effects described above, and other effects not described above will be clearly appreciated from the following description by those skilled in the art.

BRIEF DESCRIPTION OF THE DRAWINGS

The following drawings attached to the present specification illustrate exemplary embodiments of the present disclosure, and serve to help the further understanding of the technical spirit of the present disclosure together with the detailed description of the present disclosure to be described later, so the present disclosure should not be construed as being limited only to matters described in the drawings.

FIG. 1 is a perspective view of a structure to prevent soil loss in the slopes of a river and a coast according to an embodiment of the present disclosure.

FIGS. 2, 3, and 4 are perspective views of the structure according to other embodiments of the present disclosure.

FIGS. 5A, 5B, 6A, and 6B are views specifically illustrating the dimension of each part of the structure.

FIGS. 7A, 7B, 8A, and 8B are views illustrating an example of the structure pulled via a pulling protrusion part.

FIGS. 9A, 9B, 10A, and 10B are views illustrating another example of the structure pulled via the pulling protrusion part.

FIG. 11 is a flowchart of the installation method of a structure to prevent soil loss in the slopes of a river and a coast according to another embodiment of the present disclosure.

FIGS. 12 and 13 are views illustrating a state in which structures are piled on each other and installed.

FIG. 14 is a view illustrating the stress distribution of each of the structure of the present disclosure and an existing structure.

FIG. 15 is a graph illustrating crack loads due to various loads of each of the structure of the present disclosure and the existing structure.

DETAILED DESCRIPTION

However, most river slopes do not have any measures preventing soil loss in the event of a major flood, so the river slopes easily collapse during a rainy season, resulting in large-scale casualties and property loss.

Meanwhile, various wastes thrown on a sidewalk flow into a river together with rainwater, and the river is polluted.

Furthermore, wave dissipating blocks are used to prevent the soil loss and are installed on a part of a breakwater or a shoreline which receives large waves to disperse or dissipate wave energy and to reduce reflected waves, and mainly refer to concrete blocks.

As a conventional wave dissipating block, a tetrapod having the shape of four horns has been used the most, and a dolos and a sealock made by modifying the tetrapod are also frequently used recently. Particularly, the tetrapod is installed on the slope of a breakwater to form a single layer or double layers, or during the construction of a submerged structure such as a submerged breakwater, multiple tetrapods are densely collected to form one structure. In the breakwater or the bottom of a river in which tetrapods are piled on each other, wave energy is dispersed and dissipated due to a gap between the tetrapods adjacent to each other, the rugged shape of each of the tetrapods, and the interlocking thereof.

Each of the wave dissipating blocks is required to have sufficient stability against wave force, sufficient structural strength against external force or weight thereof, to be easily lifted and constructed, and to have adequate porosity when the wave dissipating blocks are piled on each other such that wave energy can be reduced.

Meanwhile, the installation method of the wave dissipating blocks includes a two-layer covering type and random piling type, wherein the two-layer covering type includes an upright covering type and an inclined covering type, and the random piling type include an upright shear surface covering type and an inclined shear surface covering type.

In the random piling type, it is easy to embody porosity between wave dissipating blocks and it is simple to install the wave dissipating blocks to have an excellent constructability, but huge concrete structures are seen to be piled on each other in disorder to the general public, causing an unsightly scene.

On the other hand, in the two-layer covering type, wave dissipating blocks are arranged in an orderly manner and do not significantly impair a surrounding aesthetic despite the arrangement of the wave dissipating blocks which are huge concrete structures, but are difficult to be constructed since whenever installing each of the wave dissipating blocks which weighs dozens of tons, the position and direction (an angle) thereof are required to be adjusted.

Furthermore, irrespective of the shape of a wave dissipating block, the structure of conventional wave dissipating blocks is installed only in such a manner that the wave dissipating blocks are piled on each other up to the top of the slope of a seafloor along the slope thereof from the seafloor, so it is very difficult to initially align the wave dissipating blocks. That is, in order to align the wave dissipating blocks on the seafloor, many workers are required to descend to the seafloor to align and install the wave dissipating blocks in place. This is a difficult work since the work relies on the skills of the workers on the seafloor on which visibility is not secured, and the risk of accidents on the seafloor is very high.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings such that those skilled in the art can easily embody the present disclosure. However, since the embodiments of the present disclosure are merely embodiments for structural or functional description, the scope of the present disclosure should not be construed as being limited to the embodiments described herein. That is, since the embodiments may have various changes and may have various forms, it should be understood that the scope of the present disclosure includes equivalents capable of realizing the technical spirit. In addition, the objectives or effects presented in the present disclosure do not mean that a specific embodiment should include all thereof or only such effects, so the scope of the present disclosure should not be construed as being limited thereto.

The meaning of terms described in the present disclosure should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of claims should not be limited to these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component. When a component is referred to as “connected” to another component, it may be directly connected to the another component, but it should be understood that other components may be present therebetween. On the other hand, when it is mentioned that a certain element is “directly connected” to another element, it should be understood that other elements are not present therebetween. Meanwhile, other expressions describing the relationship between elements, that is, “between” and “directly between” or “neighboring to” and “directly adjacent to”, etc., should be interpreted in a similar manner.

A singular expression is to be understood to include a plural expression unless the context clearly dictates otherwise. Terms such as “include” or “have” are intended to designate that the described feature, number, step, operation, component, or combination thereof exists, and it should be understood that the terms do not preclude that one or more other features, numbers, steps, operations, components, or combinations thereof may be present or added.

All terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs, unless otherwise defined. Terms defined in a dictionary used commonly should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal meaning or an excessively formal meaning unless explicitly defined in the present disclosure.

FIG. 1 is a perspective view of a structure to prevent soil loss in the slopes of a river and a coast according to an embodiment of the present disclosure; FIGS. 2, 3, and 4 are perspective views of the structure according to other embodiments of the present disclosure; FIGS. 5A, 5B, 6A, and 6B are views specifically illustrating the dimension of each part of the structure; FIGS. 7A, 7B, 8A, and 8B are views illustrating an example of the structure pulled via a pulling protrusion part; and FIGS. 9A, 9B, 10A, and 10B are views illustrating another example of the structure pulled via the pulling protrusion part

As illustrated in FIGS. 1, 2, 3, 4, 5A, 5B, 6A, 6B, 7A, 7B, 8A, 8B, 9A, 9B, 10A, and 10B, structures 100 to prevent soil loss, each of the structures including a body part 110 made of concrete, a plurality of first leg parts 120 connected to a first end of the body part 110 and arranged on a first plane by extending therefrom in longitudinal directions of the first leg parts 120, and a plurality of second leg parts 130 connected to a second end of the body part 110 and arranged on a second plane perpendicular to the first plane by extending therefrom in longitudinal directions of the second leg parts 130, may include a first reinforcement part 140, a second reinforcement part 150, and a flowing water induction part 160. Furthermore, each of the plurality of first leg parts 120 and second leg parts 130 may extend to have an angle preset in a longitudinal direction thereof.

The first reinforcement part 140 is provided by protruding outward in such a manner that a wedge-shaped block surrounds the connection part of the body part 110 to which each of the first leg parts 120 and each of the second leg parts 130 are connected.

The first reinforcement part 140 may be configured as a closed or semi-closed type.

The second reinforcement part 150 may be provided on a portion of the first leg part 120 and may protrude to the outside. The second reinforcement part 150 is formed by protruding from the first leg part 120 such that four wedge-shaped blocks having “L” shapes are provided to be symmetrical to each other up, down, left, and right to have a cross shape relative to the inflection point of the front center of the first leg part 120, wherein an end of each of the wedge-shaped blocks having “L” shapes is connected to the first reinforcement part 140.

To relieve the concentration of tensile stress, the first and second reinforcement parts 140 and 150 may be represented as

w≤E×0.7  (equation 1)

h≤E×0.8  (equation 2).

(w represents a width of each of the reinforcement parts, h represents a height of each of the reinforcement parts, and E represents a diameter (a relatively small part) of the body part.)

Specifically, the structure is composed of one body part 110 and two leg parts 120 and 130 coupled to each of the opposite ends of the body part 110 to have a structure of SPAN without steel, and accordingly, the reinforcement parts 140 and 150 can increase structural strength thereof through structural reinforcement of tensile stress (compressive strength 1/9˜ 1/13) to strengthen an interlocking function between each of the structures 100. Particularly, the first reinforcement part 140 may be configured as an open/close type and a semi-open/close type.

The length of each of the leg parts 120 and 130 is L, and an angle between the axes of the leg parts 120 and 130 is α, wherein α may be 30° or more and 90° or less.

The length of each of two leg parts 120 and two leg parts 130 coupled respectively to the opposite ends of the structure 100 is 2L sin α, and may be represented as 2L sin α≥E×4 (equation 3).

Specifically, the lengths of the leg parts 120 and 130 of each of the structures 100 are determined by the equation described above and the optimal lengths of the leg parts 120 and 130 in which tensile stress can be relieved can be experimentally calculated.

Hereinbelow, actual design examples calculated by using the above equations 1, 2, and 3 are represented as follows,

Design 1

-   -   α=65°     -   ∴ L=1,710/sin 65°=1,887 Y=3420, (T=3850)     -   ∴ M+1,887×2×cos 65°=3,850 ∴ M=2,255     -   (2×L×sin α)/E≥4.0     -   ∴ E_(4.0)=855

Design 2

-   -   α=45°     -   ∴ L=1,710/sin 45°=2,418 Y=3420, (T=3850)     -   ∴ M+2,418×cos 45°×2=3,850 ∴ M=430     -   (2×L×sin α)/E≥4.0     -   ∴ E_(4.0)=854

TABLE 1 Based on 20 Ts k L M Y = 2 × L × sinα note Design 1 E_(4.0) = 855 1,887 2,255 3,420 65° Design 2 E_(4.0) = 854 2,418 430 3,420 45°

Here, through experimental data, h may be 0.8 times or less of E, and w may be 0.7 times or less of E.

TABLE 2 Size of a protruding part (based on 20 Ts) Protruding part (2 × L × sinα)/E ≥ 4.0 w H note Design 1 E4.0 = 855 w = E × 0.7 h = E × 0.8 65° or less = or less = 600 or less 684 or less Design 2 E4.0 = 854 w = E × 0.7 h = E × 0.8 45° or less = or less = 598 or less 683 or less

The flowing water induction part 160 is provided as the shape of a channel defined by the second reinforcement part 150 such that the flow of flowing water can be induced through the channel.

The flowing water induction part 160 is configured as a cross-shaped channel by the second reinforcement part 150 relative to the inflection point of the front center of the first leg part 120 and can induce the flow of flowing water.

Specifically, the flowing water induction part 160 is a cross-shaped channel defined by the second reinforcement part 150 protruding from the first leg part 120 to have a cross shape relative to the inflection point of the first leg part 120 and is formed inside the second reinforcement part such that the flow of flowing water can be induced upward, downward, leftward, and rightward to dissipate waves and to prevent soil loss. In addition, the flowing water induction part 160 constitutes a channel of an asymmetrical cross shape such that the second reinforcement part 150 is configured as an asymmetric cross shape up and down relative to the inflection point of the first leg part 120, thereby further improving the performance of dissipating waves by directing the flow of flowing water in irregular directions.

The body part 110 and the leg parts 120 and 130 may have a circular or polygonal cross section. Specifically, each of the body part 110 and the leg part 120 or 130 may be manufactured in various polygonal shapes such as a hexagonal or octagonal shape other than a general circular shape to improve interlocking function between structures 100 and enhance stability thereof when the structures 100 are piled on each other.

Specifically, when the leg parts 120 and 130 and the body part 110 are provided to have general circular shapes or particularly, to have cross sections of various polygonal shapes such as a tetrahedron, a hexahedron, and an octahedron, hydraulic stability, that is, a stability coefficient (K_(D)) can be increased. Particularly, in a case in which each of multiple structures 100 has a polygonal shape rather than a cylindrical shape when piled on each other, a surface contact area between a structure 100 and an adjacent structure 100 is further increased, and the multiple structures 100 piled on each other interlock with each other to be prevented from moving. The structures 100 having polygonal shapes as described above have an increased contact area between the structures 100 interlocking with each other and can minimize movements thereof caused by wave energy due to efficient interlocking therebetween.

The structure to prevent soil loss in the slopes of a river and a coast according to the embodiment of the present disclosure may further include the pulling protrusion part 170.

The pulling protrusion part 170 may have a shape tapered inward in the form of a convex wedge formed on each of the lower end of the body part 110, the extension line of the axis of the body part 110, and the leg part 120 or 130.

The pulling protrusion parts 170 are configured as wedge-shaped blocks, and the upper and lower parts thereof are connected to each other to strengthen the interlocking between the structures. In addition, a pulling protrusion part 170 formed on the first leg part 120 is formed on the lower end of the first leg part by protruding therefrom such that the pulling protrusion part 170 has a straight line shape, and a pulling protrusion part 170 formed on the second leg part 130 is formed on an end of the second leg part such that the pulling protrusion part 170 has a straight line shape having a cut central part and thus a pulling rope passes through the cut part to be connected to the pulling protrusion part such that the structure 100 can be more securely pulled.

Specifically, the structure 100 of the present disclosure as a block for relieving tensile stress concentration is 1.8 times larger in structural stability than a block having tensile stress concentration and is excellent in interlocking function, thereby having a large hydraulic stability coefficient. Here, results of a structural strength analysis test refer to the Midas structural analysis program. In addition, the first reinforcement parts 140 may be configured as an open/close type and a semi-open/close type or a closed type in which the first reinforcement parts 140 are connected to each other.

Furthermore, the pulling protrusion part 170 and the first and second reinforcement parts 140 and 150 are connected to a pulling rope such that a traction force for pulling the structure can be increased. Particularly, as illustrated in FIGS. 7A, 7B, 8A, 8B, 9A, 9B, 10A, and 10B, a worker strengthens a force for pulling the structure by passing rope hanging on the pulling protrusion part 170 through the inside and outside of the second reinforcement part 150 such that the structure can be securely pulled.

The structure to prevent soil loss in the slopes of a river and a coast according to the first embodiment of the present disclosure may be manufactured such that each of the first reinforcement part 140 and the second reinforcement part 150 is inclined downward to have an internal cross-sectional area increasing gradually inward from the outside thereof, and may further include first protrusion jaws (not shown) formed on the first leg part 120 by protruding outward therefrom along the longitudinal direction of the first leg part 120 and being spaced apart by a predetermined distance from each other along the periphery of the first leg part 120, and second protrusion jaws (not shown) formed on the second leg part 130 by protruding outward therefrom along the longitudinal direction of the second leg part 130 and being spaced apart by a predetermined distance from each other along the periphery of the second leg part 130.

Furthermore, the first reinforcement part 140 and the first protrusion jaws are connected to each other, and the second reinforcement part 150 and the second protrusion jaws are connected to each other. The structure of the present disclosure may further include a first auxiliary jaw (not shown) provided between a first protrusion jaw and an adjacent first protrusion jaw along the periphery of the first leg part 120 such that the first auxiliary jaw is spaced apart from the first reinforcement part 140 in the longitudinal direction of the first leg part 120, and a second auxiliary jaw (not shown) provided between a second protrusion jaw and an adjacent second protrusion jaw along the periphery of the second leg part 130 such that the second auxiliary jaw is spaced apart from the second reinforcement part 150 in the longitudinal direction of the second leg part 130.

Furthermore, the first auxiliary jaw connects a first protrusion jaw with an adjacent first protrusion jaw, and the second auxiliary jaw connects a second protrusion jaw with an adjacent second protrusion jaw. Each of the first protrusion jaw and the second protrusion jaw may be manufactured to be inclined downward to have an internal cross-sectional area increasing gradually inward from the outside, and each of the first auxiliary jaw and the second auxiliary jaw may be manufactured to be inclined downward to have an internal cross-sectional area increasing gradually inward from the outside.

FIG. 11 is a flowchart of the installation method of a structure to prevent soil loss in the slopes of a river and a coast according to another embodiment of the present disclosure, and FIGS. 12 and 13 are views illustrating a state in which structures are piled on each other and installed.

As illustrated in FIGS. 11 to 13, the installation method of the structure to prevent soil loss in the slopes of a river and a coast according to the present disclosure described above may include forming the pulling protrusion part at S100, moving the position of the structure at S200, arranging the structure at S300, and piling the structures at S400.

The forming of the pulling protrusion part at S100 is a step of forming at least one pulling protrusion part 170 on the preset position of the structure 100 which is composed of the body part 110 made of concrete, the leg parts 120 and 130, the reinforcement parts 140 and 150, and the flowing water induction part 160 and is configured to prevent soil loss. Hereinafter, the shapes of the reinforcement parts 140 and 150 and the calculation of the length of each of the leg parts 120 and 130 are the same as described above in the structure 100 configured to prevent soil loss. (The use of equations 1, 2, and 3)

Specifically, a worker may connect a rope to the pulling protrusion parts 170 tapered inward from the outside such that the structure 100 can be pulled to be moved to a place at which the structure 100 will be installed. Furthermore, the pulling protrusion parts 160 tapered inward may be piled on each other to be engaged with each other by being aligned up and down such that an interlocking function thereof can be strengthened.

The moving of the structure position at S200 is a step of moving the position of the structure 100 to a preset position by hanging a rope on the pulling protrusion parts 170 and pulling the structure 100 after the forming of the pulling protrusion part at S100.

The arranging of the structure at S300 is a step of arranging the structure such that the flowing water induction part 160 of the structure 100 which is being moved through the moving of the position of the structure at S200 faces the front of a river or a coast.

The piling of the structure at S400 is a step of piling the structures 100 to be installed by repeating the moving of the structure position at S200 and the arranging of the structure at S300.

According to the embodiment of the present disclosure, when the structures are installed on a coast, the structures have sufficient stability against wave forces and maintain structural strength thereof against external forces or a weight thereof, and are effective in curing and construction.

Furthermore, when the structures are piled on each other to attenuate wave energy, the structures can have suitable porosity, thereby securing workability and stability during the installation of the structures.

Furthermore, according to the present disclosure, the pulling protrusion part 170 having the shape of a convex wedge is installed on each of the lower end of the body part 110, the extension line of the axis of the body part 110, and the leg parts 120 and 130, thereby causing no damage to the strength of the structure 100 and securing safety during construction and an excellent bonding property and in the case of a structure 100 having a large weight, preventing accidents during installation and reducing manufacturing costs by shortening a construction period.

Furthermore, according to the present disclosure, strength of the structure can be increased by 1.7 to 2.3 times or more than the strength of an existing structure, and the interlocking function of the structure of the present disclosure can be improved.

FIG. 14 is a view illustrating the stress distribution of each of the structure of the present disclosure and an existing structure, and FIG. 15 is a graph illustrating crack loads due to various loads of each of the structure of the present disclosure and the existing structure.

Specifically, as illustrated in FIGS. 14 and 15, as a result of a crack load test due to various loads, Sealock VIII of Japan, which is a conventional structure, has a crack load range of about 18.11 tonf to 52.97 tonf, but the structure of the present disclosure has a crack load range of about 31.58 tonf to 108.40 tonf. Accordingly, it can be confirmed that in the crack load due to various loads, the safety factor of the structure of the present disclosure is at least 1.74 times and up to 2.05 times larger than the safety factor of the conventional structure.

The detailed description of the exemplary embodiments of the present disclosure disclosed as described above is provided to enable those skilled in the art to embody the structure of the present disclosure. Although the above has been described with reference to the exemplary embodiments of the present disclosure, it will be understood by those skilled in the art that various modifications and changes can be made to the structure of the present disclosure without departing from the scope of the present disclosure. For example, those skilled in the art may use components described in the above-described embodiments in such a manner that the components are combined with each other. Accordingly, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with principles and novel features disclosed herein.

The structure of the present disclosure may be embodied in other specific forms without departing from the spirit and essential characteristics of the present disclosure. Accordingly, the above detailed description should not be construed as restrictive in all respects but as illustrative. The scope of the present disclosure should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present disclosure are included in the scope of the present disclosure. The present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined with each other to form an embodiment, or may be included as new claims by amendment after filing. 

What is claimed is:
 1. A structure to prevent soil loss in slopes of a river and a coast, the structure comprising: a body part made of concrete; a plurality of first leg parts connected to a first end of the body part and arranged on a first plane by extending therefrom in longitudinal directions of the first leg parts; a plurality of second leg parts connected to a second end of the body part and arranged on a second plane perpendicular to the first plane by extending therefrom in longitudinal directions of the second leg parts; a first reinforcement part provided by protruding outward from the body part such that the first reinforcement part surrounds the body part to which each of the first leg parts and each of the second leg parts are connected; a second reinforcement part provided on a portion of each of the first leg parts by protruding outward therefrom; and a flowing water induction part provided as a shape of a channel defined by the second reinforcement part and configured to induce a flow of flowing water.
 2. The structure of claim 1, wherein each of the plurality of first and second leg parts extends to have an angle preset in a longitudinal direction thereof.
 3. The structure of claim 1, wherein the flowing water induction part is configured as a cross-shaped channel by the second reinforcement part relative to an inflection point of a front center of each of the first leg parts and induces a flow of flowing water.
 4. The structure of claim 1, wherein the first reinforcement part is configured as a closed or semi-closed type.
 5. The structure of claim 1, further comprising: pulling protrusion parts having shapes tapered inward to have shapes of convex wedges formed respectively on a lower end of the body part, an extension line of an axis of the body part, and the first and second leg parts.
 6. The structure of claim 5, wherein the pulling protrusion parts are configured as wedge-shaped blocks and upper and lower parts thereof are connected to each other to strengthen interlocking therebetween.
 7. An installation method of a structure to prevent soil loss in slopes of a river and a coast, the method comprising: forming at least one pulling protrusion part on a preset position of the structure of claim 1; moving a position of the structure to a preset position by hanging a rope on the pulling protrusion parts and pulling the structure after the forming of the pulling protrusion parts; arranging the structure such that the flowing water induction part of the structure which is being moved through the moving of the position of the structure faces a front of a river or a coast; and piling a plurality of structures on each other to be installed by repeating the moving of the structure position and the arranging of the structure. 